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Old 05-18-2010, 05:21 PM
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Default Deadner difference to ear

I have TONS of flex on my passenger door of my single cab truck. If I put a ton of deadner on the door, how much of a difference to the ear will it make? Will it just sound better or actaully be louder to the ear? (def. will be louder on the meter).
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Old 05-18-2010, 05:44 PM
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depends, it should be quieter on the outside for sure, but everything else is all stuff we can't tell you
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Old 05-18-2010, 05:48 PM
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well its quite a bit of flex for sure, my port is right by the door. If I could stop it from flexing nearly an inch I hope that would make it lots louder..
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Old 05-18-2010, 05:49 PM
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quieter on outside and sound tighter...i added a layer of dynamat extreme to my trunk and there was a huge difference in the sound i was getting...very noticable...the spl was louder too of course, im assuming, but u can def tell the sq
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Old 05-18-2010, 05:51 PM
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Alright cool. Would stopping the flex on my door just cause another place on my truck to flex harder?
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Old 05-19-2010, 09:07 AM
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i dont think it would have a reaction like that...it should just keep the noise in the car more...but im not 100% on that 1
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Old 05-19-2010, 09:45 AM
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Would it 100%? Maybe. Could it? Definitely. Think about it this way. Your truck is a pressure vessel. As you build pressure in it, the weakest part of the vessel will show, and you get flex. If you eliminate that flex by strengthening that part of the vessel it's no longer the weakest link and some other issue may surface. It could be another panel flexing, it could be the glass starts moving, it could be any number of things. The only way to find out is to try it out to see...
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Old 05-19-2010, 10:02 AM
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This^^^^


A lot of energy is wasted on flexing of the panels.
If you can strengthen up those panels and redirect the energy, the net results will be an increase in spl

Think about it like this:
Lets say you put a 10 inch sub woofer in 2 different sealed enclosures and send 500 watts to each sub.

The first enclosure is made out of cardboard. The entire things is nothing more than a UPS box that is strong enough to support the weight of the sub. Cardboard.

The other box is 3/4" mdf, braced, and sealed inside and out side with Rhino Liner.

You could imagine the difference between the 2 boxes. The energy would be contained in the mdf enclosure, and would exit where it is supposed to, out of the sub.

The first box however would be very flimsy, and would not do a very good job at containing the energy. Energy (sound pressure) would escape everywhere, including the sub. The net results would be less bass.

This is sort of what you are doing by deadening your car. You are strengthening the panels, reducing the flex, killing vibrations and the noise that goes with them, and generally giving your audio system a more stable environmet to perform in.


Hope that helps

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Old 05-19-2010, 10:52 AM
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This ^^^
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